[Mono-list] Gtk Fixed Z-order

[nickstaves at codesnippersteam.com]

Dear All

I have a problem with z-order of widgets in Gtk.

I'm trying to show custom popup widget over the main window (for example
in the case of error). I have used Fixed widget and placed there hidden
popup VBox and main VBox which is contain all the main win widgets. When I
want to imitate popup I just show "popup VBox" and reset Sensitive
property of the "main VBox". As result I see popup over main win and main
"win is disabled" until I response to the popup.
That's working fine except there is a problem with several widgets.
First I faced TreeView widget that is appearing on the top every time,
although it's laying in the "main VBox" which should be UNDER "popup
VBox". And for example Button widget appear under "popup VBox" as expected
actually...
Googling I have found another description of the same problem

http://www.ruby-forum.com/topic/164534

And there are even more widgets "Gtk::Entry and Gtk::ProgressBar" with the
same behaviour

Could somebody help me (and not only me :)) with this?

BR
nickstaves